product description

To determine whether the air conditioner or ventilation system is operating properly, you need to check the airflow or airflow inside the duct. If the wind speed is too low, the indoor load is not adequately discharged and the best indoor air quality can not be guaranteed.

Testo 425 thermal anemometer: quickly and easily measure the flow

The testo 425 thermal anemometer is capable of rapid measurement in a ventilation duct which displays the wind speed, the calculated air flow and the measured temperature.The windmeter has a measuring range of 0 to +20 m / s, which is particularly suitable for low wind speeds.
Testo 425 thermal anemometer with retractable handle, the largest can be extended to 820mm, diameter 7.5mm.
In addition to the wind speed, do you also want to test the air volume of the air conditioning or ventilation system? Testo 425 thermal anemometer can help you solve all the problems, enter the cross-sectional area of ​​the ventilation tube, it can automatically calculate the flow measurement during air flow. The anemometer is equipped with multipoint / time averaging to provide average airflow, wind speed, and temperature.
You can read the current reading and the minimum / maximum value and the calculated average value at any time on the backlit display of the testo 425 thermal anemometer. For example, pressing the 'Hold' button will keep the current reading If you forget to turn off the anemometer, the automatic shutdown function of the testo 425 thermal anemometer will do the job for you. This keeps your battery running and ensures that your testo 425 thermal anemometer is The next measurement is ready.

Testo 425 thermal anemometer practical accessories

In order to ensure that you are able to respond adequately to any situation, we advise you to order our accessories when you purchase the testo 425 Thermal Anemometer, which is practical: As an additional option, we offer a portable case and a protective boot ( So that the anemometer waterproof, anti-pollution and anti-collision).

The product contains

Testo 425 hot wire anemometer, telescopic handle (maximum extension length 820mm), with a wind speed and temperature probe, battery, with factory reports.

NTC

Measuring range	-20 to +70 ° C
measurement accuracy	± 0.5 ° C (0 to +60 ° C) ± 0.7 ° C (remaining range)
Resolution	0.1 ° C

Thermal

Measuring range	0 to +20 m / s
measurement accuracy	± (0.03 m / s + 5% of the measured value)
Resolution	0.01 m / s

Technical Parameters

Storage temperature	-40 to +85 ° C
weight	285 g
diameter	184 x 64 x 40 mm
Operating temperature	-20 to +50 ° C
shell	ABS
Warranty	1 year
type of battery	9 V battery
Battery Life	20 hours